C / C++ / MFC

im79 wrote:

i don't have a BITMAPINFO, can make one manualy?

HBITMAP CreateGrayscaleBitmap(int nWidth, int nHeight, LPBYTE pData)
{
  BITMAPINFO *pbmi = (BITMAPINFO*) new BYTE[sizeof(BITMAPINFO) + (sizeof(RGBQUAD) * 256)];
  ZeroMemory(pbmi, sizeof(BITMAPINFO));
  pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
  pbmi->bmiHeader.biWidth = nWidth;
  pbmi->bmiHeader.biHeight = -nHeight;
  pbmi->bmiHeader.biPlanes = 1;
  pbmi->bmiHeader.biBitCount = 8;
  pbmi->bmiHeader.biCompression = BI_RGB;
  pbmi->bmiHeader.biSizeImage = nWidth * nHeight;

  RGBQUAD *pColors = pbmi->bmiColors;
  for(int i = 0; i < 256; i++)
  {
    pColors->rgbBlue = i;
    pColors->rgbGreen = i;
    pColors->rgbRed = i;
    pColors->rgbReserved = 0;
    pColors++;
  }

  CWindowDC dc(NULL);
  HBITMAP hBitmap = CreateDIBitmap(dc, &pbmi->bmiHeader, CBM_INIT, pData, pbmi, DIB_RGB_COLORS);

  delete pbmi;

  return hBitmap;
}

<br />
CDC *pDC = GetDC();<br />
CBitmap* myBitmap;<br />
<br />
myBitmap = CBitmap::FromHandle(hBitmap);<br />
myBitmap->CreateCompatibleBitmap(pDC, m_iWidth, m_iHeight);<br />
myBitmap->LoadBitmap(IDC_STATIC_PICTURE);//picture control in my dialog<br />

<br />
BOOL CGdiObject::Attach(HGDIOBJ hObject)<br />
{<br />
 ASSERT(m_hObject == NULL); // <= line 1102<br />
   if (hObject == NULL)<br />
     return FALSE;<br />
 CHandleMap* pMap = afxMapHGDIOBJ(TRUE);<br />
 ASSERT(pMap != NULL);<br />
 pMap->SetPermanent(m_hObject = hObject, this);<br />
 return TRUE;<br />
}<br />

im79 wrote:

myBitmap->CreateCompatibleBitmap(pDC, m_iWidth, m_iHeight);

im79 wrote:

myBitmap->LoadBitmap(IDC_STATIC_PICTURE);//picture control in my dialog

hfry wrote:

im79 wrote:
myBitmap->CreateCompatibleBitmap(pDC, m_iWidth, m_iHeight);

What are you trying to do here?

hfry wrote:

The CBitmap::LoadBitmap function is used to load an image into the bitmap, not set an image into a picture control...

im79 wrote:

it's not as easy as i thought

CStatic *picture = (CStatic*) GetDlgItem(IDC_STATIC_PICTURE);
picture->SetBitmap(hBitmap);

RGBQUAD *pColors = pbmi->bmiColors;
for(int i = 0; i < 256; i++)
{
    pColors->rgbBlue = i;
    pColors->rgbGreen = i;
    pColors->rgbRed = i;
    pColors->rgbReserved = 0;
    pColors++;
}

class CSpecialFile: public CBaseFile

giddy_guitarist wrote:

it gives me a whole Plethora of errors

Zac Howland wrote:

Many of the old C APIs have been deprecated. I imagine that is the majority of your errors/warnings. You can turn that off using a compiler switch (you'll have to look that up as I don't have VS available at the moment).

class CDummy
{
public:
	int m_myInt;
	static void dummy(const CDummy& dum);
	void dummy() const;
};

void CDummy::dummy(const CDummy& dum)
{
	dum.dummy();
}

void CDummy::dummy() const
{
	int x = m_myInt;
}

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb